Hemotology/Oncology Flashcards
- 90% spont remission
- PREDNISONE!!! if non-life threatening bleeding (for auto-immune)
- Splenectomy = life saving
- IV immunoglobulin (IVIG)
Tx for Idiopathic Thrombocytopenic Purpura
OFTEN AFTER VIRAL INFECTION!!!
Sx: petechiae, ecchymosis, epistaxis
Dx: Thrombocytopenia = low platelet count (t clot
WBC,Hgb, PT, aPPT = normal
Idiopathic Thrombocytopenic Purpura (ITP)
Most common bleeding d/o in kids 2-5 yo
Dx of exclusion
Idiopathic Thrombocytopenic Purpura
Immune attack of platelets -> decrease platelet life, often after VIRUS infection
Idiopathic Thrombocytopenic Purpura
Von Willebrand Dz
dec’d or impaired vWF doesn’t bind to Factor VIII -> no platelet plug
PT/aPPT/Platelets = normal
Prolonged bleeding time!!!!
Low vWF
vW Dz
Tx for vW Dz
DDAVP (type 1) (desmopressin)
vWF replacement
MOST COMMON INHERITED bleeding d/o among whites
vW Dz
Factor VIII deficiency!!!
Most common!!!
bleeding into joints (spont HEMARTHROSIS)
Hemophilia A
Hemarthrosis
bleeding into joints
prolonged aPPT
PT, bleeding time, platelets, vWV = normal (WHY???)
Hemophilia A and B
Factor IX deficiency !!!
Hemophilia B
infection/illness ->massive consumption of coagulation factors -> massive bleeding
Disseminated (wide spread) Intravascular Coagulation
prolonged aPPT/PT
low platelets
high D-Dimer
low fibrinogen (made in liver)
Disseminated Intravascular Coagulation
Disseminated
wide spread
DIC Tx
Tx underlying cause,
FFP, replace RBC, platelets
low fibrinogen =
normal platelets
prolonged PT/aPPT
= liver dz
+ Vit K deficiency
MOST COMMON cause of INHERITED thrombophilia in Caucasians
Factor V Leiden Mutations
PALPABLE PURPURA on LE (but NOT due to low platelets)
arthralgias, abd pain, renal dz
Henoch-Schonlein Pupura
NORMAL OR ELEVATED PLATELETS
deposition of IgA IMMUNE COMPLEXES
maybe high serum IgA
often elevated ASO (antistreptolysin O)
Henonch-Schonlein Purpura (HSP)